JP5976376B2 - Building power management system - Google Patents

Description

  The present invention relates to a building power management system.

  A technique for managing power consumption by a power management system in a building such as a house has been proposed. For example, in a building provided with a plurality of electrical devices, the power consumption in the building is calculated in order to avoid the inconvenience that the supply of commercial power is interrupted against the intention of the user by a current limiter or circuit breaker. In addition, there is a power management system that issues an alarm when the power consumption exceeds a predetermined allowable maximum set value (for example, Patent Document 1). According to this system, it is possible to prevent the power consumption in the building from exceeding the contracted power with the power company by an alarm, so that it is possible to prevent the power consumption from reaching the contracted power. It can be avoided that the supply of commercial power is cut off against the user's will by the device.

Japanese Patent Laid-Open No. 11-69625

  Here, as a case where the power supply to the electrical equipment is interrupted against the intention of the user, in addition to the case where the power consumption reaches the contract power as described above, a power failure occurs at the commercial power source and the building There is a case where the supply of commercial power to is stopped. On the other hand, a system that prevents the power consumption in a building from exceeding contract power cannot avoid a power supply stop that occurs contrary to the intention of the user in the event of a power failure. In addition, power supply regulations such as power outages that occur in commercial power supplies may occur due to natural disasters, and even in this case, it is inconvenient that power supply to electrical equipment is stopped against the will of the user. It is. Therefore, there is room for improvement in technology for dealing with disasters.

  The main object of the present invention is to provide a building power management system capable of suitably taking measures for a disaster when the possibility of a disaster due to a natural phenomenon increases.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  The building power management system of the first invention is a power detection means for detecting power consumption in a building to which commercial power is supplied, an acquisition means for acquiring disaster prediction information in which a disaster occurrence is predicted with respect to a natural phenomenon, An upper limit setting unit that sets a predetermined reference as a consumption upper limit value for the power consumption, and the upper limit setting unit, when the acquisition unit acquires the disaster prediction information, after acquiring the disaster prediction information As an emergency mode process assuming the occurrence of a disaster, an emergency upper limit value is set as the consumption upper limit value.

  According to the first invention, in the emergency when the disaster prediction information is acquired, since the emergency upper limit value is set as the consumption upper limit value, when the possibility that a disaster will occur due to a natural phenomenon, In anticipation of the actual occurrence of a disaster, a limit different from the normal time can be added to the power consumption by the emergency upper limit value.

  Here, unlike the occurrence of a disaster due to an accident, the occurrence of a disaster due to a natural phenomenon can be predicted to some extent, so that it is possible to prepare in advance for the occurrence of a disaster. Therefore, in the present invention, a restriction different from the normal time is added to the power consumption as a preliminary preparation. Therefore, it is possible to reduce the burden on the commercial power source during the grace period until a disaster occurs, Can be used effectively. For example, by setting the emergency upper limit value smaller than normal and suppressing power consumption, it is possible to reduce the burden of power supply on the commercial power supply. In addition, by setting the emergency upper limit value to be larger than normal and charging the power storage device, it is possible to effectively use commercial power assuming that a power failure actually occurs.

  As described above, in the building power management system, when the possibility of occurrence of a disaster due to a natural phenomenon increases, it is possible to suitably take measures for the disaster.

  According to a second aspect of the present invention, when the storage device provided in the building and charged by the supply of commercial power and the acquisition unit acquires the disaster prediction information, Emergency charging means for performing charging.

  According to the second invention, when the disaster prediction information is acquired, the power storage device can be charged before the occurrence of the disaster in anticipation of the actual occurrence of the disaster. In this case, unlike the configuration in which the power storage device is not charged as a preparation process in preparation for the occurrence of a disaster, the amount of power stored in the power storage device is insufficient after the disaster occurs, and the stored power cannot be used effectively. The inconvenience can be avoided.

  In the third invention, the upper limit setting means can implement the emergency upper limit value with priority given to the charging of the power storage device by the emergency charging means when the acquisition means acquires the disaster prediction information. It is set as follows.

  Charging the power storage device requires a larger amount of current than the operation of other electrical devices, and charging the power storage device may cause the power consumption to exceed the consumption upper limit value. On the other hand, according to the third invention, the consumption upper limit value is set by the emergency upper limit value so that the charging of the power storage device can be performed with priority. Can be prevented from exceeding the consumption upper limit. Thereby, it can suppress that power consumption reaches contract electric power by charging an electrical storage apparatus, and supply of commercial power is interrupted | blocked by a breaker.

  Further, by stopping the operation of the electrical equipment other than the power storage device, it is possible to avoid the power consumption from exceeding the consumption upper limit value due to the charging of the power storage device.

  In a fourth aspect of the invention, the acquisition means acquires, as the disaster prediction information, power supply restriction information that predicts the occurrence of a situation in which the supply of commercial power is restricted with respect to the natural phenomenon, and the emergency charging The means executes charging of the power storage device based on the power supply restriction information.

  According to the fourth aspect of the invention, when the power supply restriction information is acquired, the power storage device can be charged before the occurrence of a power failure in anticipation of a power failure actually occurring when a disaster occurs. In this case, unlike the configuration in which the power storage device is not charged in preparation for the occurrence of a power failure, the amount of power stored in the power storage device is insufficient after the power failure occurs, and power cannot be supplied from the power storage device to other electrical devices. Inconvenience can be avoided. Moreover, even if the disaster prediction information is acquired, if the power supply restriction information is not included in the disaster prediction information, the power storage device can not be charged. For this reason, it can be avoided that the power storage device is wasted and the cost required for charging is increased.

  According to a fifth aspect of the present invention, the battery charger includes a normal charging unit that charges the power storage device by supplying the commercial power when the acquiring unit has not acquired the disaster prediction information. The power storage device is charged only during a specified charging time zone, and the emergency charging means performs the charging of the power storage device regardless of the charging time zone.

  According to the fifth aspect of the invention, during normal times when disaster prediction information is not acquired, the charging time zone is a time zone in which the commercial power usage fee is set at a low price, such as midnight, for example. Since the power storage device is charged, the cost burden required for charging the power storage device can be reduced. On the other hand, in the event of an emergency when disaster prediction information is acquired, the power storage device is charged prioritizing preparation for the occurrence of a disaster rather than reducing the cost burden. Electric power can be used effectively.

  According to a sixth aspect of the invention, there is provided calculation means for calculating how long a grace time until the occurrence of the disaster is based on the disaster prediction information, and the emergency charging means is used for charging the power storage device. The magnitude of the current that is generated is adjusted based on the grace time calculated by the calculation means.

  According to the sixth aspect, since the magnitude of the current is adjusted when the power storage device is charged, the time required for charging the power storage device can be adjusted in accordance with the grace time until the occurrence of the disaster. For this reason, even when the grace time is short, it is possible to perform charging so that the amount of power stored in the power storage device becomes full by performing quick charging with a current as large as possible.

  In 7th invention, it is provided with the setting means to set the priority in the case of supplying the said commercial power for the some electric equipment provided in the said building, When the said acquisition means acquires the said disaster prediction information In addition, as the emergency mode process, an emergency stop unit that selects an electrical device having a low priority among the plurality of electrical devices and stops the supply of the commercial power to the selected electrical device is provided.

  According to the seventh aspect, it is possible to prevent the power consumption from exceeding the consumption upper limit value by stopping at least one electrical device having a low priority. In addition, when power consumption is reduced by stopping an electrical device with a low priority, other electrical devices such as a power storage device can be operated with the reduced amount. Therefore, it is possible to suitably prepare in advance for the occurrence of a disaster.

  In the eighth invention, the upper limit setting means sets the emergency upper limit value to a value smaller than the consumption upper limit value before the acquisition means acquires the disaster prediction information.

  According to the eighth aspect, since the power consumption in the building is reduced, the burden on the commercial power source can be reduced.

  In a ninth aspect of the invention, a vehicle charging device that charges a vehicle-mounted battery with commercial power, and when the acquisition unit acquires the disaster prediction information, the emergency mode processing includes: Vehicle charging means for performing charging.

  According to the ninth aspect, in-vehicle battery can be charged in preparation for disaster occurrence. In this case, unlike a configuration in which the in-vehicle battery is not charged in preparation for the occurrence of a disaster, a user such as a resident who lacks the amount of power stored in the in-vehicle battery before or after the actual disaster occurs. However, the inconvenience that the vehicle cannot be used can be avoided.

Schematic diagram showing the configuration of the building power management system Flow chart showing the procedure of power management processing The figure which shows the map for calculating the normal upper limit Figure showing priority of electrical equipment Flow chart showing emergency processing procedure Diagram illustrating the transition of power consumption

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In this embodiment, the power management system of the present invention is embodied in a building such as a house, and commercial power is supplied to the electrical equipment of the building. FIG. 1 is a schematic diagram showing a configuration of a power management system of a building 10.

  As shown in FIG. 1, a building 10 is provided with a distribution board 12 to which commercial power is supplied from a commercial power supply 11. The commercial power source 11 is configured to include a power plant, power transmission equipment, power distribution equipment, and the like, and is a facility in which an operator such as an electric power company supplies commercial power such as grid power to a power consumer such as a resident. The distribution board 12 is attached to an inner wall surface such as an entrance or a corridor, for example, and is electrically connected to the commercial power supply 11 via a lead-in wire or the like.

  Incidentally, the distribution board 12 has a main breaker connected to the commercial power supply 11 and a plurality of branch breakers connected to the downstream terminals of the main breaker. The main breaker uses a current limiter (ampere breaker) that automatically cuts off the supply of commercial power when the power consumption in the building 10 reaches the contract power with the power company, etc., and a leakage breaker as a safety device Is formed.

  The building 10 is provided with a power sensor 13 as power detection means for detecting the amount of power supplied from the commercial power supply 11 to the distribution board 12. The power sensor 13 is attached to the case body of the distribution board 12, for example. Here, the building 10 is provided with a plurality of electric devices, and the commercial power supplied to the distribution board 12 is consumed by these electric devices. In this case, the power sensor 13 detects the power consumption consumed in the building 10.

  The building 10 includes a power storage device 15 such as a rechargeable building battery, a refrigerator 19, a lighting device 21 such as a lighting fixture, an air conditioning device 22 such as an air conditioner, an audiovisual device 23 such as a television, and a hot water supply device 24. A vehicle charging device 25 for the vehicle C is provided as an electrical device. These electric devices are electrically connected to the distribution board 12 and operate by commercial power supplied via the distribution board 12.

  The power storage device 15 is installed, for example, in a warehouse of the building 10 or in an outdoor space adjacent to the outer wall, and can store commercial power. The power storage device 15 has a current adjustment unit that adjusts the magnitude (current value) of the current that flows during charging with commercial power, and the current adjustment unit can variably set the current value in multiple stages, for example. It has become. In this case, the larger the current value set by the current adjustment unit, the shorter the time required for charging the power storage device 15. The required time is the shortest when the current value is the rated value of the power storage device 15, and the power storage device 15 is rapidly charged. Further, the current adjustment unit makes the current value smaller than the rated value, whereby the power storage device 15 is normally charged. The current adjustment unit may be capable of continuously adjusting the current value.

  The power storage device 15 can supply the stored power to other electrical devices such as the lighting device 21 via the distribution board 12. In this case, other electrical devices such as the lighting device 21 can be operated by power supply from the power storage device 15 in addition to power supply from the commercial power supply 11.

  The building 10 has a plurality of living spaces as indoor spaces, and the lighting device 21, the air conditioner 22, and the audiovisual device 23 are each installed in at least one living space. The refrigerator 19 is installed in the kitchen, and the hot water supply device 24 is installed in the kitchen or an outdoor space adjacent to the outer wall. In the building 10, a living room, a kitchen, a bedroom, and the like are formed by each living space. In addition, the refrigerator 19 can be supplied with power from the distribution board 12 by inserting the connector into an outlet on the inner wall surface.

  The vehicle charging device 25 is provided in a parking space within the site of the building 10, and can supply electric power from the commercial power supply 11 and the power storage device 15 to the vehicle C. The vehicle C is, for example, an electric vehicle such as a plug-in hybrid (PHV) vehicle or an electric vehicle, and has an in-vehicle battery BT that can be charged. The vehicle charging device 25 has a charging cable 25a. When the charging cable 25a is connected to a power incoming unit (connector unit) of the vehicle C, power can be supplied from the vehicle charging device 25 to the in-vehicle battery BT. By doing so, the vehicle-mounted battery BT is charged.

  Similarly to the power storage device 15, the vehicle charging device 25 has a current adjustment unit that adjusts the magnitude of the current supplied when charging the in-vehicle battery BT, and can perform quick charging and normal charging of the in-vehicle battery BT. It is possible.

  Here, an electrical configuration related to the control system of the power management system will be described.

  The power management system has a home server 31 as control means. The home server 31 includes a microcomputer including a CPU and various memories, and is attached to, for example, an inner wall surface of a living room. The home server 31 has a storage unit 32 that stores information such as the rated current of each electrical device such as the lighting device 21.

  The home server 31 is connected to the power storage device 15, the refrigerator 19, the lighting device 21, the air conditioner 22, the audiovisual device 23, the hot water supply device 24, and the vehicle charging device 25, and the home server 31 outputs a command signal. To control the operation of these electrical devices. The power storage device 15 has a sensor that detects the amount of power stored, the vehicle charging device 25 has a sensor that detects the amount of power stored in the in-vehicle battery BT, and the refrigerator 19, the lighting device 21, the air conditioner 22, the audiovisual device 23, and the hot water supply device. Reference numeral 24 denotes a sensor that detects each operation state, and the sensor of each electric device outputs a detection signal to the home server 31.

  Connected to the home server 31 are an operating device 35 in which an input operation is performed by a person, a notification device 36 capable of performing a notification operation, and a communication device 37 capable of wireless communication or wired communication. For example, the notification device 36 and the communication device 37 are integrally attached to the case body of the home server 31.

  The controller device 35 detects an input operation and outputs a detection signal to the home server 31. The notification device 36 includes a speaker that outputs a notification sound and a display panel that displays a notification screen, and the operation is controlled based on a command signal output from the home server 31. The communication device 37 can communicate with an external facility such as an electric power company, and can be connected to the Internet. The home server 31 can be used for natural weather information such as weather information and earthquake information related to earthquakes. Natural information regarding the phenomenon can be acquired from the communication device 37. Natural information can also be input from the operation device 35. By the way, natural phenomena include weather such as rain and wind and earthquakes.

  The home server 31 executes power management processing of the power management system, and performs emergency processing in an emergency mode in an emergency in which a disaster is likely to occur due to a natural phenomenon such as weather or an earthquake. Here, the power management process executed by the home server 31 will be described with reference to FIGS. 2 is a flowchart showing the procedure of power management processing, FIG. 3 is a diagram showing a map for calculating the normal upper limit value, FIG. 4 is a diagram showing the priority order of the electric equipment, and FIG. 5 is a flowchart showing the procedure of emergency processing. It is. Note that the home server 31 repeatedly executes the power management process at a predetermined cycle.

  In FIG. 2, in step S101, it is determined whether or not natural information has been input from the communication device 37 or the operation device 35, and disaster prediction indicating that the natural information has increased the possibility of a disaster due to a natural phenomenon. It is determined whether or not information is included. That is, it is determined whether or not disaster prediction information that predicts the occurrence of a disaster regarding a natural phenomenon has been input. For example, when the weather information as natural information includes weather warnings such as heavy rain warnings, earthquake motion warnings, and tsunami warnings for the area where the building 10 is located, the weather warnings are determined as disaster prediction information.

  Note that a predetermined standard may be set for the magnitude of the earthquake, and the earthquake information may be determined as the disaster prediction information when the magnitude of the earthquake that is predicted to occur is larger than the predetermined standard. For example, earthquake information in which an occurrence of an earthquake with a seismic intensity of 5 or more is predicted as disaster prediction information. Further, a predetermined standard may be set for the strength of the typhoon, and when the strength of the typhoon predicted to approach is larger than the predetermined standard, the typhoon information may be determined as disaster prediction information.

  In addition, when a natural phenomenon that has a high possibility of causing a disaster is settled, the natural information includes release information indicating that the state with a high possibility of the occurrence of a disaster has been settled. That is, release information is input. Here, in step S101, after the disaster prediction information is input, it is determined that the disaster prediction information is continuously input until the cancellation information is input. When the cancellation information is input, It is determined that the prediction information has not been input.

  When disaster prediction information is not input, the control mode is set to the normal mode, and in steps S102 to S111, energy saving recommendation processing is performed for the purpose of suppressing excessive use of commercial power in a normal time that is not an emergency. In step S102, a consumption upper limit Pm is set as a criterion for overuse. Here, the upper limit value in the normal mode is set to the consumption upper limit value Pm as the normal upper limit value according to each time.

  The normal upper limit value is calculated based on the calculation map shown in FIG. In the normal upper limit calculation map, time is a parameter, and the normal upper limit value is calculated according to each time. For example, the upper limit is usually set to the lowest in the sleeping hours such as midnight, and is set to the highest in the morning or evening at-home time. Note that the normal upper limit value is smaller than the contract power with the power company or the like in any time zone.

  In step S <b> 103, based on the detection signal of the power sensor 13, a power consumption amount Pc as power consumption that is commercial power consumed in the building 10 is calculated. In step S104, the operating state of each electrical device is acquired based on detection signals from electrical devices such as the lighting device 21 and the air conditioner 22. In step S105, it is determined whether or not the power consumption Pc is larger than the consumption upper limit value Pm.

  When the power consumption amount Pc is not greater than the consumption upper limit value Pm, the process proceeds to step S106, and the notification device 36 notifies the power consumption status. Here, the power consumption amount Pc and the consumption upper limit value Pm are displayed on the display panel of the notification device 36 to notify that the power consumption amount Pc is equal to or lower than the consumption upper limit value Pm. Further, the power consumption amount Pc and the consumption upper limit value Pm are stored in the storage unit 32 in association with the current time, and the past values of the power consumption amount Pc and the consumption upper limit value Pm are read from the storage unit 32, and the consumption upper limit value Pm A change mode of the power consumption Pc is displayed on the display panel.

  On the other hand, when the power consumption Pc is larger than the consumption upper limit value Pm, the process proceeds to step S107, and electric devices having different priorities are included in the operating electric devices based on the priority set for each electric device. It is determined whether or not. Here, the priority order of the electric devices is a rank determined based on, for example, a high degree of importance of operation for a user such as a resident, and the priority is higher as the importance is higher.

  Here, the priority order of the operating electrical equipment is calculated based on the map as setting means shown in FIG. In the map indicating the priority order, the priority order is indicated by a level value. The lower the level value, the higher the priority order. For example, the lighting device 21 is included in level 1 having the highest priority, and the refrigerator 19 is included in level 2 having the second highest priority after level 1. Level 3 includes an audiovisual device 23, level 4 includes an air conditioner 22 and a hot water supply device 24, and level 5, which originally has a low priority, includes a power storage device 15 and a vehicle charging device 25. Note that the home server 31, the operation device 35, the notification device 36, and the communication device 37 are not included in the map indicating the priority order.

  When a plurality of electrical devices having different priorities are operating, the process proceeds to step S108, and the notification device 36 notifies the power consumption status. Here, the power consumption amount Pc and the consumption upper limit value Pm are displayed on the display panel of the notification device 36 to notify that the power consumption amount Pc is larger than the consumption upper limit value Pm. Further, similarly to step S106, the change mode of the power consumption Pc is displayed on the display panel.

  In step S109, an electrical device to be stopped is selected in order to make the power consumption Pc smaller than the consumption upper limit value Pm. In this process, the excess amount of the power consumption Pc with respect to the consumption upper limit value Pm is calculated, the power consumption of the operating electrical device is calculated based on the detection signal of each electrical device, and the power consumption of each electrical device is calculated. Based on the consumption, the electrical devices to be stopped are selected in order of decreasing priority so that the power consumption Pc is smaller than the consumption upper limit Pm. And the process which recommends stopping the selected electric equipment by alert | reporting with the alerting | reporting apparatus 36 is performed. Thereby, the user can easily select an electric device to be stopped when the power consumption Pc exceeds the consumption upper limit value Pm.

  When the electric device in operation does not include electric devices having different priorities (when step S107 is NO), the process proceeds to step S110 and the notification device 36 notifies the power notification state. Here, as in step S108, it is notified that the power consumption Pc is larger than the consumption upper limit Pm.

  In step S111, assuming that there is no electrical device that can be stopped in order to make the power consumption Pc smaller than the consumption upper limit value Pm, it is recommended to change the consumption upper limit value Pm to a value larger than the power consumption amount Pc. Do. In this process, a voice that is recommended to perform an input operation on the operation device 35 so as to update (review) the calculation map of the consumption upper limit value Pm so that the consumption upper limit value Pm in the current time zone increases. And the image are notified by the notification device 36.

  After performing the energy saving recommendation process in steps S102 to S111, the process proceeds to step S112, and it is determined whether or not the current time is in the midnight power time zone. Here, in the building 10, the electric contract with the electric power company or the like is a contract in which the electricity rate is set at a lower price compared to other time zones at midnight. It is said. When the current time is the midnight power time zone, the process proceeds to step S113, and the charging process for the power storage device 15 and the in-vehicle battery BT is performed. In this charging process, the power storage device 15 is normally charged. In addition, the in-vehicle battery BT is charged on condition that the charging cable 25a is connected to the power incoming unit of the vehicle C.

  If the current time is not in the midnight power time zone, the power management process is terminated without performing the charging process.

  When disaster prediction information is input (when step S101 is YES), the control mode is set to the emergency mode, the process proceeds to step S114, and emergency processing is performed. The emergency process will be described based on the flowchart of FIG.

  In FIG. 5, in step S <b> 201, it is determined whether or not the disaster prediction information includes power supply restriction information indicating that the possibility of a power failure occurring at the commercial power supply 11 is increased. That is, it is determined whether or not the power supply restriction information is input. For example, when it is assumed that an earthquake or heavy rain is large enough to stop power generation by a power plant or power transmission facility, weather information in that case is determined as power supply restriction information. The disaster prediction information may be information on the occurrence of a power failure or power supply restriction predicted by an electric power company or the like based on weather information or the like. Moreover, as the power supply limitation, in addition to a power failure in which the supply of commercial power to the building 10 itself is limited, there is a supply amount limitation in which the supply amount of commercial power is limited.

  When the power supply restriction information is not input, the process proceeds to step S202 as the upper limit setting unit, and the emergency upper limit value that is the upper limit value in the emergency mode is set as the consumption upper limit value Pm. In this case, the emergency upper limit value is smaller than the normal target value in the current time zone. Thereby, the energy-saving effect is enhanced, and as a result, it is possible to suppress an increase in the load of power supply in the commercial power supply 11. Note that the emergency upper limit value when no power supply restriction information is input is determined in advance by a map or the like so as to be a value smaller than the normal target value, and is stored in the storage unit 32.

  In step S203, it is determined whether or not the power consumption amount Pc is larger than the consumption upper limit value Pm. If larger, the process proceeds to step S204, and the power consumption amount Pc is made smaller than the consumption upper limit value Pm as in step S109. Therefore, an electric device to be stopped is selected for the electric device in operation. In step S205, a command signal for stopping the operation of the selected electric device is output to forcibly stop the operation of the electric device. Thereby, the power consumption Pc can be made smaller than the consumption upper limit Pm. In addition, information on the type and installation location of electrical equipment to be stopped, information on instructing residents to gather a room with few furniture such as chiffons as a safe room, information on the occurrence of a predicted disaster, etc. Notification is given by the device 36.

  On the other hand, when the power supply restriction information is input, the process proceeds to step S206, and it is determined whether or not the disaster prediction information includes evacuation information indicating that the necessity of evacuation such as evacuation advice or evacuation support has increased. That is, it is determined whether evacuation information has been input. When the evacuation information is not input, the process proceeds to step S207 as a calculation means, calculates a grace time until the predicted occurrence disaster, and determines whether the grace time is longer than a predetermined reference time. . Here, the required time when both the power storage device 15 and the in-vehicle battery BT are normally charged is stored in the storage unit 32 as a reference time, and the reference time is read from the storage unit 32. The grace time may be determined according to the type and scale of the disaster that is predicted to occur.

  If the grace time is longer than the reference time, the process proceeds to step S208 as the upper limit setting means, and the emergency upper limit value is set to the same value as the normal upper limit value in the current time zone and set as the consumption upper limit value Pm. The emergency upper limit value when the power supply restriction information is input and the grace time is longer than the reference time is determined in advance by a map or the like so as to be the same value as the normal target value, and is stored in the storage unit 32. Yes.

  In step S209 as an emergency stop means, by outputting a command signal for stopping the operation of the electric equipment having a priority level of 4, the operation of the electric equipment is forcibly stopped, and as an emergency charging means. In step S210, the power storage device 15 is normally charged. Here, by stopping the level 4 electric device, an increase in the power consumption Pc is suppressed even when the power storage device 15 is normally charged, and the emergency upper limit value is the same as the normal upper limit value. As a result, the power consumption amount Pc is less likely to exceed the consumption upper limit value Pm. In addition, the notification device 36 notifies information about the type of electrical equipment to be stopped and the installation location.

  Note that, in step S210, the operation of the electric device that is not the power storage device 15 among the electric devices of level 5 is forcibly stopped. That is, if the vehicle-mounted battery BT is charged by the vehicle charging device 25, the charging is also stopped. In addition, after the amount of power stored in the power storage device 15 reaches the rated value, that is, after the power storage device 15 becomes full, the vehicle charging device 25 performs a normal charging process for the in-vehicle battery BT.

  Then, it progresses to step S203 and it is determined whether the electric power consumption Pc is larger than the consumption upper limit Pm in the state which has stopped the electric equipment of level 4. When the power consumption Pc is larger than the consumption upper limit value Pm, the process proceeds to step S204, and an electrical device to be stopped is selected for the electrical device that is operating. Here, the level 4 electrical devices have already been stopped, and the level 5 power storage device 15 and the vehicle charging device 25 are under charge control, so that the level 1 to 3 electrical devices are selected in ascending order of priority. become. In step S205, the operation of the selected electrical device is forcibly stopped as well as the case where the power supply restriction information is not input, the information regarding the charging state of the power storage device 15 and the in-vehicle battery BT, and the operation of other electrical devices. Information on the state, information for instructing behavior of residents, information on disaster, and the like are notified by the notification device 36.

  When the grace time is equal to or shorter than the reference time, the process proceeds to step S211 as the upper limit setting means, and the emergency upper limit value is set to a value larger than the normal upper limit value in the current time body and set as the consumption upper limit value Pm. Note that the emergency upper limit value when the power supply restriction information is input and the grace time is equal to or shorter than the reference time is determined in advance by a map or the like so as to be a value larger than the normal target value, and is stored in the storage unit 32. ing. In this case, the emergency upper limit value is larger than the normal target value, but smaller than the contract power with the electric power company or the like.

  In step S212 as an emergency stop means, the electrical devices with priority levels 3 and 4 are forcibly stopped, and in step S213 as an emergency charge means, the power storage device 15 is assumed to have little time to disaster. Do a quick charge. Here, by stopping more electrical devices of level 3 and level 4 than in the case of performing normal charging of the power storage device 15, an increase in the power consumption Pc is suppressed even when the power storage device 15 is rapidly charged. In addition, since the emergency upper limit value is larger than the normal upper limit value, the power consumption Pc is less likely to exceed the consumption upper limit value Pm. In addition, the notification device 36 notifies information about the type of electrical equipment to be stopped and the installation location.

  In step S213, as in step S210, the operation of the electrical device that is not power storage device 15 among the electrical devices of level 5 is forcibly stopped. Further, after the power storage device 15 becomes full, the vehicle charging device 25 performs a normal charging process for the in-vehicle battery BT.

  Thereafter, the process proceeds to step S203, and it is determined whether or not the power consumption amount Pc is larger than the consumption upper limit value Pm in a state where the level 3 and 4 electrical devices are stopped. When the power consumption Pc is larger than the consumption upper limit value Pm, the process proceeds to step S204, and an electrical device to be stopped is selected for the electrical device that is operating. In this case, the electric devices of level 1 and 2 are selected in order from the lowest priority. In step S205, the operation of the selected electrical device is forcibly stopped as well as the case where the power supply restriction information is not input, the information regarding the charging state of the power storage device 15 and the in-vehicle battery BT, and the operation of other electrical devices. Information on the state, information for instructing behavior of residents, information on disaster, and the like are notified by the notification device 36.

  When the power supply restriction information and the evacuation information are input (when step S206 is YES), the process proceeds to step S214 as the upper limit setting unit, and the emergency upper limit value is set to a value larger than the normal upper limit value in the current time zone. Set as the upper limit Pm. The emergency upper limit value when evacuation information is input is determined in advance by a map or the like so as to be a value larger than the normal target value, and is stored in the storage unit 32. Note that the emergency upper limit value in this case is determined to be larger than the emergency upper limit value when the power supply restriction information is input and the grace time is equal to or shorter than the reference time. Also in this case, the emergency upper limit value is made smaller than the contract power with the electric power company or the like.

  In step S215 as the emergency stop means, the electrical devices having the priority levels 2 to 4 are forcibly stopped, and in step S216 as the vehicle charging means, there is little time margin until the occurrence of the disaster. The vehicle-mounted battery BT is rapidly charged because there is a possibility of evacuating. Here, by stopping the electrical devices of levels 2 to 4, which are more than in the case of performing normal charging and quick charging of the power storage device 15, the increase in the power consumption Pc is suppressed even when the in-vehicle battery BT is rapidly charged. In addition, since the emergency upper limit value is set larger than the normal upper limit value, the power consumption Pc is less likely to exceed the consumption upper limit value Pm. Then, after charging of the in-vehicle battery BT is completed, the power storage device 15 is rapidly charged. In addition, the notification device 36 notifies information about the type of electrical equipment to be stopped and the installation location.

  Then, it progresses to step S203 and it is determined whether the electric power consumption Pc is larger than the consumption upper limit Pm in the state which has stopped the electric equipment of levels 2-4. When the power consumption Pc is larger than the consumption upper limit value Pm, the process proceeds to step S204, and an electrical device to be stopped is selected for the electrical device that is operating. Here, a level 1 electric device is selected. In step S205, the operation of the selected electrical device is forcibly stopped as well as the case where the power supply restriction information is not input, the information regarding the charging state of the power storage device 15 and the in-vehicle battery BT, and the operation of other electrical devices. Information on the state, information for instructing behavior of residents, information on disaster, and the like are notified by the notification device 36.

  In the power management process, when the state with a high possibility of occurrence of a disaster is settled, it is assumed that the release information is input and the disaster prediction information is not input. The processes (S102 to S113) are executed. In this case, the process executed in the emergency process is terminated, and the process executed in the normal mode process is resumed. Specifically, as an emergency process, when the power storage device 15 or the in-vehicle battery BT is charged, the charging is terminated, and the electric device that is not the power storage device 15 or the in-vehicle battery BT is forcibly stopped. If this happens, operate the electric device again.

  Next, the transition of the power consumption Pc will be described with reference to FIG. FIG. 5 is a diagram illustrating the transition of the power consumption Pc. FIG. 5A shows a case where normal charging of the power storage device 15 is performed when a disaster occurrence is predicted, and FIG. 5B shows a disaster occurrence predicted. In this case, the power storage device 15 is rapidly charged. In FIG. 5, the reduction and increase in the power consumption Pc due to the stop and start of the electrical equipment are illustrated assuming a case where the decrease and increase occur without a time lag. Further, (a) illustrates the transition of the amount of power stored in the power storage device 15, and (b) illustrates the transition of the amount of power stored in the in-vehicle battery BT.

  In FIG. 6A, disaster prediction information is input to the home server 31 at time T1 in a time zone when the power storage device 15 is not charged, and the disaster prediction information includes power supply restriction information. On the other hand, evacuation information is not included. For this reason, in the emergency mode, the emergency upper limit value is set to the same value as the normal upper limit value at time T1, and is set as the consumption upper limit value Pm. With the input of disaster prediction information (power supply restriction information), one of the operating electrical devices is stopped, and normal charging of the power storage device 15 is started. In this case, the power consumption Pc is increased by the amount of commercial power supplied to the power storage device 15, but the power consumption Pc is decreased by the amount of the priority level 4 electrical device being stopped. The amount Pc is not greater than the consumption upper limit value Pm.

  The amount of power stored in the power storage device 15 gradually increases after normal charging is started, and becomes full at time T2. For this reason, the normal charging of the power storage device 15 is terminated at time T <b> 2, and the power consumption Pc is reduced by the amount of power supplied to the power storage device 15. Thereafter, when a power failure actually occurs at time T3, power supply from the commercial power supply 11 to the distribution board 12 is stopped, and the power consumption Pc becomes zero. On the other hand, from the power storage device 15 to the distribution board 12 Power supply is started. Thereby, even in the case of a power failure, the level 1 electric device or the like can be operated by the power supply from the power storage device 15.

  In FIG. 6 (b), as in FIG. 6 (a), disaster prediction information is input to the home server 31 at time T4 in a time zone when the power storage device 15 is not charged. Includes both power supply restriction information and evacuation information. For this reason, in the emergency mode, the emergency upper limit value is set to a value larger than the normal upper limit value at time T4, and is set as the consumption upper limit value Pm. Along with the input of disaster prediction information (power supply restriction information and evacuation information), one of the operating electrical devices is stopped, and rapid charging of the in-vehicle battery BT is started. In this case, the power consumption Pc is increased by the amount of commercial power supplied to the in-vehicle battery BT, but the power consumption Pc is decreased by the amount of the electric devices having priority levels 2 to 4 being stopped. Since the emergency upper limit value is larger than the normal upper limit value, the power consumption amount Pc is not larger than the consumption upper limit value Pm.

  The amount of power stored in the in-vehicle battery BT gradually increases after the rapid charging is started, and becomes full at time T5. For this reason, the rapid charging of the in-vehicle battery BT is terminated at time T5, and the power consumption Pc is reduced by the amount of power supplied to the in-vehicle battery BT. Thereafter, even if a power failure actually occurs at time T6, charging of the in-vehicle battery BT is completed before that time, so the user can evacuate with the vehicle C before time T6. .

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  When disaster prediction information is input to the home server 31, the emergency upper limit value is set as the consumption upper limit value Pm in the emergency mode emergency processing. In anticipation of the occurrence of a disaster after that, a limit different from the normal mode processing can be added to the power consumption Pc by the emergency upper limit value. In addition, since the restriction on the power consumption Pc is added during the grace period until a disaster occurs, it is possible to reduce the burden on the commercial power source 11 and to effectively use the commercial power. As described above, when the possibility of the occurrence of a disaster due to a natural phenomenon becomes high, it is possible to suitably take measures for the disaster.

  When disaster prediction information is input to the home server 31, the power storage device 15 is charged, so that the actual disaster occurs and the power storage device 15 is charged with commercial power before the disaster occurs. I can keep it. In this case, unlike the configuration in which the power storage device 15 is not charged as a preparatory process in preparation for the occurrence of a disaster, the stored power of the power storage device 15 is insufficient and the stored power is effective after the disaster actually occurs. It is possible to avoid the inconvenience that it cannot be used.

  The emergency upper limit value when the power storage device 15 is charged is set equal to or larger than the normal upper limit value so that the power storage device 15 can be charged with priority, and the emergency upper limit value is the consumption upper limit value. Since it is set as the value Pm, it can be suppressed that the power consumption Pc exceeds the consumption upper limit value Pm as the power storage device 15 is charged. As a result, by charging the power storage device 15, the power consumption Pc exceeds the consumption upper limit value Pm and reaches contract power, and the supply of commercial power is cut off by the main breaker or branch breaker against the user's will. Can be avoided.

  When the power storage device 15 is charged, the operation of the electric device having a predetermined priority level is stopped, so that the power consumption Pc exceeds the consumption upper limit value Pm as the power storage device 15 is charged. Can be suppressed. Thereby, it can avoid that supply of commercial electric power is interrupted | blocked by various breakers by charging the electrical storage apparatus 15. FIG. That is, it is possible to suitably prepare for the preparation for disaster occurrence. Moreover, since the electrical device whose operation is stopped is a device with a low priority, even when the operation of the electrical device stops, there is little trouble for the user to make preparations such as preparing for a disaster.

  Since the power storage device 15 and the vehicle charging device 25 are set to a level 5 that has a lower priority than other electrical devices, the power consumption is reduced by stopping the charging of the power storage device 15 and the vehicle charging device 25 in normal times. It is possible to suppress the amount Pc from exceeding the consumption upper limit value Pm. On the other hand, in an emergency, since the power storage device 15 and the vehicle charging device 25 are operated with priority regardless of the priority order, preparation for disaster occurrence or power outage can be performed by the process of charging. .

  Moreover, since the home server 31 is not included in the map indicating the priority order of the electrical devices, when the disaster prediction information is acquired, the home server 31 stops its own operation and the power management system stops. Can be avoided.

  When the power supply restriction information is input to the home server 31, the power storage device 15 is charged. Therefore, in anticipation of a power failure due to the occurrence of a disaster, the power storage device 15 is connected to commercial power before the power failure occurs. Can be charged. In this case, unlike the configuration in which the power storage device 15 is not charged as a preparation process in preparation for the occurrence of a power failure, the power storage amount of the power storage device 15 is insufficient after the power failure actually occurs. The inconvenience that the stored power cannot be supplied to other electric devices can be avoided.

  Since the magnitude of the current used for charging the power storage device 15 can be adjusted, the time required for charging the power storage device 15 can be adjusted according to the estimated grace time until the occurrence of a disaster. Can do. For this reason, even when the grace time is short, by performing quick charging, it is possible to perform charging so that the amount of power stored in the power storage device 15 is full.

  Even if the disaster prediction information is input to the home server 31, if the power supply restriction information is not input, the power storage device 15 is not charged. Therefore, the power storage device 15 is wasted and charged. It is possible to avoid an increase in required cost. Further, in this case, since the in-vehicle battery BT is not charged, it is possible to avoid an increase in the cost required for charging the in-vehicle battery BT. Further, in this case, the emergency upper limit value is made smaller than the normal upper limit value, and the emergency upper limit value is set as the consumption upper limit value Pm. Therefore, the power consumption Pc in the building 10 is reduced, and thereby the commercial power supply 11 Can be reduced.

  In the processing in the normal mode, the power storage device 15 and the in-vehicle battery BT are charged only in a charging time zone such as midnight, so that the power storage device 15 is compared with a case where charging is performed in a non-charging time zone such as daytime. And the on-vehicle battery BT can be charged inexpensively. That is, the cost burden required for charging the power storage device 15 and the in-vehicle battery BT can be reduced. On the other hand, in the emergency mode emergency process, the power storage device 15 and the in-vehicle battery BT are charged regardless of the time zone, giving priority to the preparation process for the occurrence of a disaster. In addition, the stored power of the power storage device 15 and the in-vehicle battery BT can be used effectively.

  When disaster prediction information is input to the home server 31, the in-vehicle battery BT is charged, so that electric power can be stored in the in-vehicle battery BT in preparation for the occurrence of a disaster. In this case, unlike the configuration in which the in-vehicle battery BT is not charged in preparation for the occurrence of a disaster, the amount of power stored in the in-vehicle battery BT is insufficient before or after the actual disaster has occurred. The inconvenience that the vehicle C cannot be used can be avoided. In addition, when the evacuation information is input to the home server 31, charging of the in-vehicle battery BT is performed with priority over the power storage device 15, so that when the user evacuates with the vehicle C when a disaster occurs, the in-vehicle battery BT It is possible to avoid the situation where the charging of the battery is not completed. Furthermore, if it is the structure which can be electrically fed from the vehicle-mounted battery BT to the distribution board 12 side via the vehicle charging device 25, it will become possible to operate electric devices, such as the illuminating device 21, with the electrical storage electric power of the vehicle-mounted battery BT.

  When the release information is input to the home server 31, the emergency mode emergency process is terminated, the normal mode is returned to the normal mode, and the normal mode process is executed. Therefore, the emergency process is performed indefinitely when no disaster occurs. Can be avoided. For this reason, it can be avoided that the power storage device 15 and the in-vehicle battery BT are maintained in a full state and the cost burden on the commercial power increases even though the natural phenomenon that has a high possibility of causing a disaster has been settled. .

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, one of the power storage device 15 and the in-vehicle battery BT is charged first, and after the charging is completed, the other is performed. Both charging operations may be performed in parallel. In this case, since the commercial power used for charging the power storage device 15 and the in-vehicle battery BT increases, a process for determining the emergency upper limit value as much as possible within a range smaller than the contract power for the power consumption Pc, or a charging process It is preferable to perform a process of increasing the number of electrical devices to be stopped along with this.

  (2) In the above embodiment, when the power storage device 15 is charged, charging is performed until the power storage amount of the power storage device 15 becomes full. However, charging may be terminated with a power storage amount smaller than the full tank. . For example, the power supply restriction information includes duration prediction information in which the time during which power supply restriction is continued is included, and the home server 31 calculates the predicted duration of supply restriction based on the duration prediction information, and continues prediction. It is determined whether or not the time is shorter than a predetermined reference time. If the time is shorter, charging is terminated when the amount of power stored in the power storage device 15 reaches a predetermined amount smaller than full. In this case, since the time when power supply restriction such as a power failure occurs is short, it is possible to store as much power as is necessary in that time in the power storage device 15 and avoid storing excess power in the power storage device 15. Thereby, even if it is the charge process of the electrical storage apparatus 15 in emergency, the increase in an electric power charge can be suppressed.

  (3) Even when the power supply restriction information is not included in the disaster prediction information, the power storage device 15 or the in-vehicle battery BT may be charged. According to this configuration, when a power failure occurs as an unpredictable power supply restriction, the power storage amount of the power storage device 15 or the in-vehicle battery BT is sufficiently secured. Electric power can be used effectively.

  (4) During normal times when disaster prediction information is not acquired, the charging time zone in which the power storage device 15 is charged at a reduced price may be a time zone such as early morning, daytime, and evening instead of midnight. In addition, the power storage device 15 may be charged in a non-charging time zone that is not a charging time zone.

  (5) In the above embodiment, the priority order determined for each electrical device of the building 10 is the same in the normal time when disaster prediction information is not acquired and in the emergency when disaster prediction information is acquired. However, the order may be different between the normal time and the emergency time. For example, for the power storage device 15 and the in-vehicle battery BT, the emergency priority is higher (eg, level 2) than the normal priority (eg, level 5). As a result, it is possible to reduce power charges by suppressing useless charging in normal times, and to secure stored power in emergency situations.

  Further, the priority order may be a different order depending on the time zone and season when the disaster prediction information is acquired. For example, the lighting device 21 is set to have a higher priority (for example, level 1) when it is nighttime than a priority (for example, level 5) when the time zone when the disaster prediction information is acquired is daytime. Accordingly, it is possible to prioritize other electrical devices that are not the lighting device 21 during the daytime, and it is possible to ensure indoor brightness by lighting the lighting device 21 with priority during the nighttime.

  For the refrigerator 19, the priority in the summer season is set higher (for example, level 1) than the priority in the winter season when the disaster prediction information is acquired (for example, level 2). Thereby, in summer, the highest priority can be given to maintaining the quality of food stored in the refrigerator 19. Moreover, about the air conditioner 22, the priority of winter is set high (for example, level 1) instead of the refrigerator 19. In this case, it is possible to prioritize the air conditioner 22 to perform the heating operation in order to relieve the cold than the operation of the refrigerator 19 because the quality of food is unlikely to deteriorate during the winter.

  (6) In the above embodiment, the home server 31 terminates the emergency mode emergency process when the release information is input. However, the emergency process may be terminated by another trigger that is not the input of the release information. For example, the home server 31 determines whether or not the elapsed time (emergency processing execution duration) after the input of the disaster prediction information has reached a predetermined time, and triggers the arrival when it has reached. As a result, the emergency process ends. In addition, it is determined whether or not the charged amount of the power storage device 15 or the in-vehicle battery BT is full (whether charging is completed), and if it is full, it is full. The emergency process is terminated with Trigger.

  (7) In the above embodiment, the power sensor 13 is used as the power detection means, but a power meter (power meter) owned by an electric power company or the like may be used as the power detection means. Even in this case, the power consumption in the building 10 can be detected by the power detection means.

  (8) In the above embodiment, in the emergency mode emergency process, the low-priority electric device is stopped and the power storage device 15 and the vehicle charging device 25 are operated instead. Instead of the electric device to be operated, the power storage device 15 or the vehicle charging device 25 may not be used. For example, an electric device (for example, level 1) such as the lighting device 21 having a higher priority than the stopped electric device (for example, level 4) is operated. In this case, it is easy for the user to prepare for the occurrence of a disaster by preferentially operating an electric device having a high importance for the user.

  DESCRIPTION OF SYMBOLS 10 ... Building, 13 ... Electric power sensor as electric power detection means, 15 ... Electric power storage apparatus as electric equipment, 19 ... Refrigerator as electric equipment, 21 ... Illuminating device as electric equipment, 22 ... Air conditioning apparatus as electric equipment, 23 ... Audio-visual device as electrical device, 24 ... Hot water supply device as electrical device, 25 ... Vehicle charging device as electrical device, 31 ... Upper limit setting means, emergency charging means, normal charging means, calculation means, setting means, emergency stop means , Home server as vehicle charging means, 35... Operating device as acquisition means, 37... Communication device as acquisition means, BT.

Claims (8)

Power detection means for detecting power consumption in a building to which commercial power is supplied;
An acquisition means for acquiring disaster prediction information that predicts the occurrence of a disaster related to a natural phenomenon;
Upper limit setting means for setting a predetermined reference as a consumption upper limit value for the power consumption;
With
When the acquisition unit acquires the disaster prediction information, the upper limit setting unit sets an emergency upper limit value as the consumption upper limit value as emergency mode processing assuming a disaster occurrence after acquisition of the disaster prediction information. Monodea is,
A power storage device provided in the building and charged by supplying the commercial power;
When the acquisition unit acquires the disaster prediction information, an emergency charging unit that performs charging of the power storage device as the emergency mode process;
Power management system of the building, characterized in that it comprises a. The upper limit setting unit is configured to set the emergency upper limit value so that charging of the power storage device by the emergency charging unit can be performed with priority when the acquisition unit acquires the disaster prediction information. The building power management system according to claim 1 . The acquisition means acquires, as the disaster prediction information, power supply restriction information that predicts the occurrence of a situation in which the supply of commercial power is restricted with respect to the natural phenomenon,
The emergency charging means, the power management system of a building according to claim 1 or 2 and executes charging of the power storage device based on the feed limiting information. When the acquisition unit has not acquired the disaster prediction information, it comprises a normal charging unit for charging the power storage device by supplying the commercial power,
The normal charging means executes charging of the power storage device only in a predetermined charging time zone,
The emergency charging means, the electric storage device power management system of a building according to any one of claims 1 to 3 and executes the charge regardless of the said charging time period. Based on the disaster prediction information, comprising a calculating means for calculating how much grace time until the disaster occurs,
The emergency charging means, the magnitude of the current used in the charging during the charging of said power storage device, any one of claims 1 to 4 and adjusts based on the calculated delay time by the calculation means 1 The building power management system as described in the section. For a plurality of electric devices provided in the building, comprising setting means for setting a priority in the case of supplying the commercial power,
When the acquisition unit acquires the disaster prediction information, as the emergency mode process, the low-priority electric device is selected from the plurality of electric devices, and the commercial power is supplied to the selected electric device. the power management system of a building according to any one of claims 1 to 5 has a emergency stop means for stopping. Upper limit setting means, the very upper limit, in any one of claims 1 to 6 is to set to a value smaller than the consumption upper limit value before the acquisition means acquires the disaster prediction information The building power management system described. A vehicle charging device for charging an in-vehicle battery with commercial power;
When the acquisition unit acquires the disaster prediction information, as the emergency mode process, a vehicle charging unit that performs charging of the in-vehicle battery by the vehicle charging device;
The building power management system according to any one of claims 1 to 7 .

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